Hi ! I'm using Boost.Test for quite a while and now I wonder if the behaviour of "--catch_system_errors" is correct. I've attached a simple test case which just triggers a simple "assert(false);". Running the testcases with trunk bjam yields one failure and two passing tests. See "test.log" for details. Running the testcases against 1.341. yields three failures with _different_ exit codes. See test_1_34_1.log When looking at the output of trunk "with_catch.test", I see --snip--- with_catch: assert_test.cpp:13: void test_assert::test_method(): Assertion `false' failed. <TestLog><TestSuite name="Master Test Suite"><TestCase name="test_assert"><Message file="assert_test.cpp" line="11">one</Message><Info file="assert_test.cpp" line="12">check true passed</Info><TestingTime>0</TestingTime></TestCase></TestSuite></TestLog><TestResult><TestSuite name="Master Test Suite" result="passed" assertions_passed="1" assertions_failed="0" expected_failures="0" test_cases_passed="1" test_cases_failed="0" test_cases_skipped="0" test_cases_aborted="0"></TestSuite></TestResult> EXIT STATUS: 0 --snap-- So, some observations: Obviously, the UTF succeds in catching the "assert". The resulting message is not in the XML-Log The return code is 0 (Success). A quick look at the new docs prototype at http://www.patmedia.net/~rogeeff/html/utf/usage-recommendations/command-line... found "If you got fatal exception somewhere within test case, make program generate coredump by adding extra command line argument " This was not easy to spot since the real test cases succeeded with error code 0 and the message was hidden in the log file. I found this because msvc on windows fires up an annoying debug window instead. So it seems this is not working there. So, my questions/suggestions are: Is this a bug ? Or a feature ? And if its a feature, where can I find the rationale ? I think the caught assertions should lead to a non-zero exit code and a failing test suite. And it would be nice if they got properly XML-formatted (but after a quick scan through the source, this seems difficult...) Yours, Jürgen -- * Dipl.-Math. Jürgen Hunold ! Ingenieurgesellschaft für * voice: ++49 511 262926 57 ! Verkehrs- und Eisenbahnwesen mbH * fax : ++49 511 262926 99 ! Lister Straße 15 * juergen.hunold@ivembh.de ! www.ivembh.de * * Geschäftsführer: ! Sitz des Unternehmens: Hannover * Prof. Dr.-Ing. Thomas Siefer ! Amtsgericht Hannover, HRB 56965 * PD Dr.-Ing. Alfons Radtke !